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Please Note:
You will need to solder 3V regulator by yourself.
ESP07, ESP08, ESP12 module boards, or voltage regulator are not included.
What's in the box?
1 x Serial Port WIFI ESP8266 Module Adapter Plate
2 x Pin headers
JST XH connectors were developed based on the high reliability and versatility of the NH series connectors

What's in the box?
2pin = 10Sets =20PCS
3pin = 10Sets =20PCS
4pin = 10Sets =20PCS
5pin = 10Sets =20PCS
Pin Connector Terminal :150PCS

Specifications
- 250 V
- 3A
- 10mm x 15mm
1 x Black Mini Rocker Switch
Resources
Python library
Introduction to Buttons and Switches
Types of buttons and switches
Description:
Crimps 8P8C/RJ-45,6P6C/RJ-12, and 6P4C/RJ-11 connectors
Ratcheted handle movement for added precision
Plastic-covered handles to reduce fatigue
This small size Bluetooth 4.0 TTL transceiver module allows your target device to communicate with your iPhone/iPAD, IOS 6 or Android 4.3 devices.
Features
- It's easy to use and completely encapsulated.
- You can set it as slave or master.
- You can use AT command to set the baudrate.
Specifications
- Ultra-low standby power consumption 90uA~400uA
- Coverage up to 60 meters
- Built in PCB antenna
- Power input: 3.6V-6V DC(Can not higher than 6V)
- Size: 43mm x 15mm
- Colour: Blue
- Net Weight: 4g
What's in the box?
1 x IOS HM-10 BLE Bluetooth 4.0 CC2540 CC2541 Serial Wireless Module
Resources
Setup
This is a popular OLED display with Portable and wearable devices becoming the new trends.
Specifications
- Driver: SSD1306
- Interface type: IIC interface
What's in the box?
1 x OLED display
Resources
Pin definition: GND, VCC, SCL, SDA
- GND(OLED power supply)
- VCC (OLED 3.3~5V)
- SCL(OLED IIC Clock line)
- SDA(OLED IIC Cable)
We used these instructions to get it working on Pi: https://circuitdigest.com/microcontroller-projects/ssd1306-oled-display-with-raspberry-pi
It is a great addition to any audio project where you need 8 ohm impedance and 1W or less of power.
What's in the box?
1 x Phone Micro speaker 1 Watt 15mm x 10mm x 4mm
Single Chip Using: If Small load KEY connect 20S single chip and supply with input LOW, the module will work well.
Specifications
- Charge voltage: DC 4.5V-5.5V(Recommend DC 5V)
- Charging current: 0-2.1A
- Charge quiescent current: 100uA
- Full charge voltage: 4.2V -1%
- Discharge current: 0-2.4A
- Discharge quiescent current:50uA
- Discharge conversion efficiency: MAX 96%
- Output voltage: 5V
- Output current: 0-2.4A
- Operating ambient temperature: -20°to 85°
- Size: 25x16x4mm
- Weight: 2.3g
- PCB board design: Immersion Gold
- Battery protection: OCP/OVP/SCP/OTP
About module pins
1 VIN: charge port
2 GND: charge port -
3 BAT: Battery
4 GND: Battery -
5 GND: output -
6 VOUT: output
7 KEY: trigger
Note:
1. In discharging mode(charging mode KEY function invalid), trigger KEY one time,output open; trigger two times, output close.
2. Output will open automatically if you connect load. If load below 50MA, the module will turn off output port; if load over 50MA, output port will always open.
3. Allow charging and discharging at the same time(output voltage should below 5V. Stop charging and stop discharging,you should reactivation the module.)
What's in the box?
1 x power module
1 x button
Resources
1. Charge/Discharge: All cables
2. Charge: Connect power supply and battery
3. Discharge: Connect battery and output


Single-core tinned copper wire is used, which is easy to weld and anti-oxidation, and is not easy to break. The copper wire can withstand a high temperature of 80°C, making it suitable for a variety of thermal overload applications. The single-strand copper core has strong resistance to tension and surge current, which is convenient for shaping. Packaged by reel, the copper core has a moderate diameter and clear lines, making it easy to use and store. Copper wire is suitable for welding notebooks, motherboards, LCD screens, displays and other circuit boards.
Features
- Material: Plastic and Metal
- Total length of about 250M
- Line: 30AWG
- Single sheath outer diameter of about: 0.55mm, copper core diameter of about 0.25mm.
- Temperature: 80 degrees, single-strand copper crossing tin, have antioxidant effects.
What's in the box?
This testing wire with alligator clips will help transmit DC current to other multi-meters or other usage.
Made from copper wire and well-made PVC.
It can pass 3-5A(max) current during your testing work.
High performance, lower resistivity and durable, fast and stable, high-speed output current
Specifications
- Colour: Red and Black (V and V-)
- Power: 5V
- Working current: 3-5A
- Lines size: 2x18AWG
- Cable Length: 332mm
What's in the box?
1 x USB Male Alligator test lead
This complete robot car kit includes the arduino as well. Just add batteries and code. Great for beginners to learn how to code using sensors and motion on the Arduino boards
What's in the box?
1 x Car chassis
2 x Car Wheels
2 x DC Gear Motor
2 x 20 line gun code disk
4 x Fasteners (high intensity black acrylic)
1 x Caster wheel
1 x Four battery box
1 x Quality Rocker Switch
1 x Assembly drawing
1 x V5 shield
1 x UNO R3
1 x SG90
1 x FPV
1 x L298N
Several screws and nuts
Resources
Pdf manual available at http://www.cs.columbia.edu/~sedwards/presentations/robot-car-instructions.pdf
Get more details at https://create.arduino.cc/projecthub/hda-robotics/project-1-2wd-obstacle-avoiding-robot-390ef8

Features
- Low voltage suitable for embedded applications
- Standard SCCB interface compatible with I2C interface
- RawRGB to RGB (GRB4: 2:2, RGB565/555/444), YUV (4:2:2) and YCbCr (4:2:2)output format
- support VGA, CIF, and from CIF to 40x30 the size
- VarioPixel subsampling way eliminate light stripes, automatic black level calibration image quality control including color saturation, hue, gamma, sharpness ANTI_BLOOM
- ISP has eliminate noise and dead pixel compensation function
- Support image scaling
- The lens is the loss of light compensation
- 50/60Hz detection
- The saturation automatically adjust ( UV adjustment)
- edge enhancement automatically adjust
- Noise Reduction automatically adjust
Specifications
- photosensitive array 640X480
- O voltage 2.5V to 3.0V ( internal LDO to core supplies ) the
- power operation 60mW/15fpsVGAYUV
- Sleep < 20 μ A
- temperature operation from 0 ° C to 50 ° C
- ( 8 -bit) output format ? YUV/YCbCr4 RGB565/555/444 GRB4: 2:2: 2:2 Raw RGB Data
- Optical size of 1/6 "
- field of view angle of 25 °
- maximum Zhen rate 30fps VGA
- Sensitivity 1.3V / (Lux-sec)
- signal to noise ratio of 46 dB
- dynamic range of 52 dB
- browsing mode progressive
- electronic exposure
- area of 3.6 μ mx 3.6 μ m
- dark current 12 mV / s at 60 ° C
What's in the box?
1 x camera board
Resources
How to Use OV7670 Camera Module with Arduino
Features:
Specifications:
- Product Size: 56mm x 45mm
- Thickness: 12mm
Note:
Micro:bit control board is not included
Package Inlcudes:
1 x Micro:bit Silicone Protective case
The MMDVM hotspot module new version is can work with UHF ( not VHF)
We especially provide a aluminium alloy case for you to install it.
Features
- High performance 32-bit ARM processor
- Fully assembled and tested
- Supports DMR, P-25, D-Star and System Fusion
- Onboard LEDs to show status (Tx, Rx, PTT, Mode)
- Up to 10mW RF power
- SMA antenna connector, UHF antenna included
- Mounts cleanly on all current Raspberry Pi’s including the Pi Zero
- The firmware is pre-loaded and is easily upgraded via software.
- HF 433 900 MHZ
- Support and tested with PI-STAR
What's in the box?
1 x MMDVM Hotspot Expansion Board
1 x Antenna
1 x OLED
1 X Aluminum Case
Resources
PiStar Setup guide
What is an Amateur radio Hotspot
Features
- Two bearing block stability greatly improved.
- 304 Stainless steel has excellent corrosion resistance and good resistance to intergranular corrosion.
Specifications
Fit For: Stepper Motor
Colour: Silver gold
Materials: 304 stainless steel brass
Size: 300mm x 8mm
Lead Rod: 8mm
What's in the box?
1 x Lead screw rod
1 x Nut
2 x Coupling
2 x Bearing seat
Diode 3A 1000V DO-27
Specifications
Lead mounted standard recovery rectifiers are designed for use in power supplies and other applications having need of such a device
What's in the box?
5 x 1N5408 3A 1000V Diodes
Resources
Intoduction
Basics, Types, Characteristics, Applications & Packages
1 simple steps and direction control interface
2 six different steps resolutions: full step, half step, 1/4-step1/8-step1/16-step, 1/32-step
3.CAN interface directly with 3.3 V and 5 V systems
4 Over-temperature thermal shutdown, overcurrent shutdown, undervoltage lockout
5 short to ground short circuit load protection
6.4 Layer 2 oz copper PCB, in order to improve heat dissipation
7 exposed solder ground below the bottom of the driver IC on the printed circuit board pad
8 module size, pin and interface matching A4988 stepper motor driver operators in many ways
9 adjustable current control lets you set a potentiometer, which lets you use the stepper motor's rated voltage or more, in order to achieve a higher rate of maximum output current step
10 Intelligent chopping control automatically selects the correct current decay mode (fast decay or slow decay)
11 Maximum 45 V supply voltage
12 built-in voltage regulator (the need for any external logic supply voltage)
What's in the box?
1 x 3D Printer Driver
Resources
How to control a stepper motor with Arduino
Specifications
- Support EM4001, EM4100, EM4200, TK4100 and its compatible RFID ID card
- Frequency: 125KHz
- First 10 digits of the RFID proximity card read.
- Windows95/98/2000/XP/7/8/10/android
- Communication speed: 106Kbit/s
- Power: DC 5V
- Reading distance: 5-8cm
- Interface: USB
- Operation temperature: -10~70 celsius degree
- Storage temperature: -20~80 celsius degree
- Size(L*W*H): 108mm x 78mm x 28mm
- Total Weight: 100g
- Colour: Black
Application
Widely used in entrance guard, consumption, hotel lock, water meter, electricity meter and gas meter and a series of IC card management application systems.
Features
1.Fast in reading the RFID Tags
2.Connects to PC to read the RFID tags and update to the application
1 x RFID ID Card Reader
Resources
Installation Instructions
1: Connect the USB cable with the card reader to the computer USB port.
2: The reader will 'drip' sound and flash about that power successfully,
and then half a second after the 'drip' sound and flash about that device self-test successfully, without Installing any drivers, windows will automatically recognize it.
3: Open notepad and scan a 125KHz card to test.
Typical Application
- Frequency: 125KHz
- Standard: ISO EM4100 and compatible
- Material: Silicone (100% SGS approved, RoHS, eco-friendly)
- Printing: no logo
What's in the box?
1 x RFID wristband
- This is a basic 16 character by 2 line display.
- Utilizes the extremely common HD44780 parallel interface chipset.
- Interface code is freely available.
- Blue Backlight with white words.
- uses 4 Bit Arduino LCD Library.
- Size:8cm x 5.9cm - 3.15inch x 2.32inch
What's in the box?
1 X Keypad Shield 1602 LCD
Resources
DFRobot WIKI
